Valve.



F. L. CROSS. VALVE. APPLIQATIOE FILED AUG. 21, 1909.

I Patented 0011i 1 1912.

will! VA-EVE.

Hpoulfleutiou mt Letters Patent Peteuteolfiet. 1, 1912.2

Applioetiou mm August :21, 1%? ,fieriel No. 513,9?5.

.lo all whom ll may coma-em:

Be it known that l, FRANK L. (Image citizen of the United-'Eltates oi America, iresitling at Detroit, in the county of Wayne end State of Michigan, have inveuteqlcertaiu new and useful Improvements in Valves, of which the following is a specification, reference being hurl therein to the accompanying; drawings,

This invention relates to values eutl more particularly to one adopted :lor Z.". l"' ring the amount of flow theretlni'ougli and i. producing e. constant drop inveloeit-y pressure at any given point in e oonelui main of e gas OI. fiuitl tlistrilautiug syste w.

The invention cousists in the me ere here matter set forth, and more particularly pointed out in the eppendeel claims.

The drawing is Vl'BW pumielly in section end artially in ele'vutioii. oi value our leotlymg ileetui'es oil the inveutiom The casing 13 hes an inlet 14: and outlet A cylindrical-closure 15 is longitudimolly TECl'DI'OCfllOiB ll'l the aperture of e tliephmgm Ill atljgueeut the inlet lei or equive lent means for preventing the passage of fluid by the lIllLQIlUi of the olooure, uud

through a, tin-out 18 on the upper eml of the casing. A flout chamber 19 is seated. on :1 Flange 20 of the throat or otlieit'wise sui ably supported. thereon with an interior well 21 eating us guide for the upper portion of the cylinder 16. A stem 22 extending; from the head of the eyliucler 16, is secured to u float bell 23 in the clmmloer l9 and is reeiproeolole through a, stalling box or guide bearing 24 in the crown thereof. A record ing pen 25 on the upper end oil the stem traverses a record sheet "26 on a rotatable eylimler 27 operated by suitable mechanism.

A small pipe or by-pass 28 opens from the casing between the outlet 15 and the closure 16 into the upper portion of the float chem" be? 19, and longitudinally disposecl ports 29 are formed; in the lower portiou of the eyliintler Well.

lluoperation a more or less resti'ieteol opening efifoitletl by the elosui'e due to the position oi the ports in ltelaiifilttfi the inlet tlieplii'egm causes o com sponoling change v ollmgm and its in. pressure of may lluicl thet enters the in let and passes through the closure and out-- let, so that the pressure in the float chamber is varilecl. By proper adjustment of the parts the valve mitomatically provides for at constant drop in velocity pressure between inlet end." outlet irege'rtlless of varying preser at the inlet, or! correspondingly, varymg boelt presume beyond the outlet... The fluctuations oi the velveare recorded end the yesultunt diagram gives the data neees sery for computing the flow through the value at any given time or during any period of V v Qllyviously, details of construct-ion may loe mutle without departing; from the spirit of invention anal I do not limit myself to any particular form o1 arrangement of ports.

'Wlmt ll claim as my invention is:-

1. In a lluicl distributing system, a measlll'lllg' valve eomprismg a casing provided' with a "vertical throat 11ml with an inletand an outlet, on inner diaphragm having a single'guitie aperture in line with the throat, u closed. float tault on and above the casing providetl with e guicle aperture in its top and with ewell alined with the throat and diaphragm upertuie, a hollow, cylindrical vertical closure with its lower open end extending through the diaphragm and its upper end in the well, the lower portion of' the closure having part ot uniform crossseetion throughout their length, a Stem extemliug from the closure through the guide aperture of tlie teulee loot ltell 011' the stem in the tank, fiilll, indicating means on the 2. In a fluid distrihutingsystem, a measuring valve comprising a i with a vertical throat on its upper side and with an inlet and amoutlet an inner diaphr'ogm having a single guide aperture in line with the tlnrout e. blosed float tank on oucl above the casinglprovided with a guide opeeture in its top fill'lld with 'a. well alined with the theout and (liophmgm aperture, a hollow, eylimlriozil vertical closure with its lower open end extending through the diauptper end in the well, the

lower portion of the closure having "ports casing provided of uniform cross-section throughout their In testimony whereof I afiix my signature lgngth, a steI'n' extending from the .closure in presence of two witnesses. through the guide aperture of the tank, a

flpat bell: pn 'the stem in the tank, a. by-pass FRANK CROSS 5 connecting the casing interior beyond the Witnesses: closure wzthuthezfioat tank and indicating G. R. STIOKNEY,

megziglqnsflem. A. M. SHANNON. 

